radicle

rad·i·cle

(rad'i-kĕl), Do not confuse this word with radical.

A rootlet or structure resembling one, as the radicle of a vein, a minute veinlet joining with others to form a vein, or the radicle of a nerve, a nerve fiber that joins others to form a nerve; the smallest branches of a vessel or nerve.

[L. radicula, dim. of radix, root]

radicle

/rad·i·cle/ (rad´ĭ-k'l) ramulus; one of the smallest branches of a vessel or nerve.

radicle

(răd′ĭ-kəl)

n.

1. Botany The part of a plant embryo that develops into a root.

2. Anatomy A small structure, such as a fibril of a nerve, that resembles a root.

rad·i·cle

(rad'i-kĕl)

A rootlet or a structure resembling one, as the radicle of a vein, a minute veinlet joining with others to form a vein, or the radicle of a nerve; a nerve fiber that joins others to form a nerve.

[L. radicula, dim. of radix, root]

radicle

Any small structure resembling a root. From the Latin radicula, diminutive of radix, a root.

radicle

the basal part of the embryo in a seed, developing into the primary root of the seedling.

rad·i·cle

(rad'i-kĕl)

A rootlet or structure resembling one, as the radicle of a vein or the radicle of a nerve, i.e, a nerve fiber that joins others to form a nerve; the smallest branches of a vessel or nerve.

Models for the responses of seed germination One seed is considered germinated just after radicle protrusion indicating the presence of a normal seedling capable of developing a normal plant under field conditions.

Seeds were dissected under a stereomicroscope and the degree of the development of each embryo was assessed visually using a six-point scale (1--embryo length less than 1/4 of the seed length, embryo is heart-shaped; 2--embryo length ca 1/4 of the seed length, cotyledons and radicle of equal length; 3--embryo length ca 1/3 of the seed length, pronounced cotyledons and radicle; 4--embryo length ca 1/2 of the seed length, radicle twice as long as the cotyledons, cotyledons leafy; 5--embryo length 2/3 of the seed length; 6--embryo length nearly equal to the seed length).

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